On 3/25/19 10:24 AM, Rafał Wądołowski wrote: > Hi, > > On one of our cluster (3400 OSD, ~25PB, 12.2.4), we incremented pg_num & > pgp_num on one pool (EC 4+2) from 32k to 64k. After that cluster started > to be instable for one hour, pgs were inactive (some activating, some > peering). > > Any idea what bottlenecks we hit? Any ideas what should I change in > configuration of ceph/os ? > > Hi, For such cases (PG increase) we usually do it in multiple steps for both pg_num and pgp_num waiting for cluster to reach all PG active state after each increase. However we work on replicated pools only. -- PS _______________________________________________ Ceph-large mailing list Ceph-large@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-large-ceph.com
